Good idea
I was toying with something similar in my head but haven't acted on it. Mainly because my graphic skills are less than... adequate I believe. Unless you're groovy with "Pong"
Since a lot of this is still relatively new, most of us are still trying to find out to what extent we can control things. After that dies down a bit I would expect a lot more complete graphical overhaul UI mods
-Selae